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California residents can now request all data brokers delete personal info

https://consumer.drop.privacy.ca.gov/
1•memalign•3m ago•0 comments

Mamdani's Decision to Revoke Executive Orders That Backed Israel

https://www.nytimes.com/2026/01/04/nyregion/mamdani-revoke-israel-orders.html
1•handfuloflight•8m ago•0 comments

Show HN: A concept implementation for a faster Transformer [pdf]

https://github.com/tuned-org-uk/tauformer-paper/blob/main/Permanent%20Domain%20Memory%20and%20Fas...
1•tuned•14m ago•0 comments

Claudish

https://claudish.com/
1•handfuloflight•15m ago•0 comments

The Benefits of a Support Ticket to Documentation Lifecycle

https://www.mooreds.com/wordpress/archives/3710
2•mooreds•16m ago•0 comments

Jarz-Streaming for Your Workloads

https://github.com/plasticity-of-cloud/jarz-streaming
1•mooreds•17m ago•0 comments

Ask HN: How is your work making the world a better place?

2•AbstractH24•18m ago•0 comments

Why I Keep Returning to Middle-Earth

https://www.nytimes.com/2025/12/19/opinion/tolkien-grief-lord-rings.html
1•handfuloflight•19m ago•0 comments

'Big Short' investor accuses AI hyperscalers of artificially boosting earnings (2025)

https://www.cnbc.com/2025/11/11/big-short-investor-michael-burry-accuses-ai-hyperscalers-of-artif...
2•1vuio0pswjnm7•20m ago•1 comments

Relationship Between Artist and Computer

https://www.atariarchives.org/artist/preface.php
1•alien0006•20m ago•1 comments

Bad Apple but it's played with cargo compilation output

https://old.reddit.com/r/rust/comments/1q3rrt0/media_bad_apple_but_its_played_with_cargo/
2•afdbcreid•21m ago•0 comments

A man who paves India's roads with old plastic (2018)

https://www.theguardian.com/world/2018/jul/09/the-man-who-paves-indias-roads-with-old-plastic
1•mooreds•23m ago•0 comments

Stop Playing Flappy Bird with Your New Year's Goals

https://suntreeapps.com/blog/posts/new-years-goals-difficulty-curve/
2•kenshi•24m ago•0 comments

Joke Father

https://jokefather.com/
1•fisenkodv•29m ago•0 comments

Enclose.horse

https://enclose.horse
1•justicz•34m ago•0 comments

Finley: Artificial Intelligence is making old guys obsolete

https://www.usatoday.com
1•cebert•37m ago•0 comments

High-level is the goal (but why?) [video]

https://www.youtube.com/watch?v=AmrBpxAtPrI
1•bobajeff•40m ago•0 comments

Personal notes of things I need to master, as AI writes most of the code now

https://pradyumnachippigiri.dev/blogs/engineers-future
2•PraddyChippzz•40m ago•0 comments

Meta releases open data to train General AI Co-Scientists

https://huggingface.co/datasets/facebook/research-plan-gen
1•shash42•48m ago•0 comments

Show HN: PokéPath TD – Free Pokémon tower defense game

https://pokepathgame.com
1•airobus•57m ago•0 comments

Building Privacy Preserving RAG with Homomorphic Encryption

https://www.subhashdasyam.com/2025/11/building-privacy-preserving-rag-with.html
1•dxsecarch•59m ago•0 comments

Question for Engineering Leaders

https://shadowscoping.com/
2•rezat•59m ago•2 comments

Rapid Validation of Product Concepts with AI

https://luvsheth.com/p/rapid-validation-of-product-concepts
1•Reviving1514•1h ago•1 comments

Somebody Build This

1•Caritaspax•1h ago•3 comments

Who's in charge of Venezuela and what happens next?

https://www.bbc.com/news/articles/crmlz7r0zrxo
6•SilverElfin•1h ago•12 comments

Show HN: CloudSlash – Find AWS waste and generate Terraform state rm commands

1•drskyle•1h ago•0 comments

AGI Is Here

https://www.robinsloan.com/winter-garden/agi-is-here/
9•cmod•1h ago•8 comments

'Chinese Peptides' Are the Latest Biohacking Trend in the Tech World

https://www.nytimes.com/2026/01/03/business/chinese-peptides-silicon-valley.html
2•bookofjoe•1h ago•2 comments

They Said AI Would Replace You by Now

https://www.youtube.com/watch?v=dH_UvWmvny0
4•cable2600•1h ago•0 comments

Americans Choosing Cremation at Historic Rates, NFDA Report Finds

https://nfda.org/news/media-center/nfda-news-releases/id/9772/americans-choosing-cremation-at-his...
3•toomuchtodo•1h ago•1 comments
Open in hackernews

Show HN: Krowdovi – Video-based indoor navigation on a DePIN creator economy

https://github.com/daftpixie/krowdovi
9•24hrmvp•23h ago
What is this?

Krowdovi is an open-source platform that lets anyone with a smartphone record first-person navigation videos of indoor spaces - hospitals, airports, malls, universities - and earn tokens for helping others find their way around. It's built on Solana using a burn-and-mint DePIN model.The project addresses two problems:

Indoor navigation is still broken. 30% of first-time hospital visitors get lost or arrive late to appointments, costing large hospitals $200K-$500K annually in staff time. Existing solutions like Google Live View require pre-captured Street View data (which barely exists indoors), and enterprise tools charge $10K-$50K/year per venue.

Videographers are losing work to generative AI. Tools like Sora can generate synthetic video, but they can't walk through your hospital's actual layout or film your venue's real routes. There's an economic opportunity for creators to own location-based visual content that AI can't replicate.

How it works

For users: Scan a QR code at a venue entrance, watch a first-person video showing the route from where you are to your destination, with overlay graphics and multi-language support.

For creators: Record navigation videos on your phone, upload to the platform, earn reputation tiers (Bronze → Diamond) based on quality and views, get paid when users burn $FIND tokens to unlock your routes.

Token mechanics: Users burn $FIND tokens to mint "credits" that unlock videos. 75% of burned tokens are permanently removed from circulation, 25% goes to a remint pool that rewards creators. The smart contract on Solana handles burn-and-mint logic, reputation tracking, and distribution.

Everything is MIT licensed - fork it, the code is yours.

Why I built this

I care deeply about making the world accessible for all. If this gets forked someone executes fantastically to make the world a more accessible place for people who have visual or mobility impairments - sweet!

Technical stack

Smart Contracts: Rust/Anchor on Solana (burn-and-mint engine, reputation tiers, treasury management) Backend: Node.js/Express + Prisma/PostgreSQL (venue metadata, video uploads, JWT auth)

Frontend: Next.js 14 (Creator Studio, overlay tooling, wallet integration via @solana/wallet-adapter-react)

Designed to be hostable on Railway/Vercel with minimal devops. The smart contract is on devnet - needs a security audit before mainnet, but you can test token burns/mints now.

Current limitations

What works: Smart contract deployed on devnet, full-stack app ready to deploy, video upload workflow, wallet authentication.

What doesn't: No real content yet (I need to film 10-20 venues), no mainnet token launch (waiting on security audit + demand validation), quality verification is manual, no mobile app (web-only).

Next steps: Deep soulful reflection on anti-gaming, moderation, ZK proofs

Try it yourself!

GitHub repo has setup instructions. You'll need Solana CLI, Node.js + pnpm, and a Solana wallet for devnet testing.Interested in forking for a different vertical, contributing code, testing by filming routes, or discussing token economics? I'm around to discuss in the comments.

Comments

31337Logic•23h ago
Yo!! Thank you. You're doing great work. ;-)
24hrmvp•23h ago
Appreciate that - thank you :)
m00dy•21h ago
hey, it looks like after I scan qr code, I end up with a video player of sort of. but, how does the system know where I'm going ?
24hrmvp•21h ago
This is where the creator studio comes in - each published and validated video is going to have its own unique URL which can be launched via QR/NFC or just the direct link at the venue.

I haven't got to that part yet truly - that's next step for me is to go get some pilots (content) to start testing that flow

24hrmvp•20h ago
The intention for scale is this

You book a flight The airline sends the navigation route in your booking confirmation SMS/E-mail pre arrival with the correct route to get you from security and to your gate Venue is covering the burn Creator gets royalties on the remint And with navigation like this - the opportunity for advertising revenue is huge.

Can literally have an overlay on the video for discounts at an airport retail outlet at the exact moment that the end user is walking past the retail outlet

utopiah•20h ago
How I'd do it :

- setup PeerTube via Docker https://docs.joinpeertube.org/install/docker

- record a video of a path on my phone

- upload video on PeerTube server (via Web or its new mobile app)

- print a QR code of that resulting URL

- slap QR code(s) at location start

optionally

- write a PeerTube plugin to play/pause https://docs.joinpeertube.org/contribute/plugins#write-a-plu... and https://developer.mozilla.org/en-US/docs/Web/API/Acceleromet...

- properly tag videos with geolocation data https://developer.mozilla.org/en-US/docs/Web/API/Geolocation...

- add monetization, e.g. https://www.npmjs.com/package/peertube-plugin-web-monetizati...

my overall point though is that IMHO the core of the project is a video server. There is already at least a quality one, well maintained with a rich community making plenty of plugins.

24hrmvp•18h ago
This is great feedback - thank you. Video server yes - but what is really critical to me is the creator studio feature that enables nav overlays (these overlays become the throughput for accessibility for vision impaired/language barriers)

Will def look into Peertube

franga2000•8h ago
All of this sounds great for outdoor navigation, but then again, if you're outdoors with good GPS, you don't really need video navigation, a map will do the trick. Video is best for indoor navigation, which is where positioning is the hardest to do, so your approach doesn't work there.
24hrmvp•7h ago
Would be what you would assume - but here is the reality. Pilots with 1st person POV nav have been highly successful for consumer indoor navigation. For asset tracking, position matters. For consumers trying to get where they are going, they could care less about positioning.

Blue dot navigation has failed because it doesn't translate to I door spaces. Video with motion aware playback gives the illusion of an AR experience - but avoids the drift issues that plagued AR driven experiences.

I can cite for you plenty of 1st person POV pilots where the consumer feedback has been exceptional

franga2000•7h ago
Are you saying this doesn't do any kind of positioning? Just plays when the accelerometer shows movement and stops when it doesn't? I need to try this at some point because it really feels like that wouldn't work. People walk at different speeds so the video would desync, take a wrong turn or incorrectly recognise landmarks so the video would be completely wrong... What's the error recovery procedure here?

Might just need to try it if you say it works well. Hopefully I find some time to nuke the blockchain out of this and set up a test instance for our university.

24hrmvp•7h ago
Correct - no positioning at all. Just get the user where they want to go.

MotionAware playback. And yes! You are asking all the right questions.

Desync from the video playback is a known problem with 1st person POV nav - many different ways to tackle it. I haven't implemented them yet - right now I am focused on building a Stableframe feature that allows the creators to upload video that hasn't been recorded with a gimbal and will stabilize the frame the get rid of the vertical bounce when people walk and record routes

24hrmvp•7h ago
The other side to the equation is you have a ton of CXOs that got burned on cap ex trying to use bluetooth beacons to implement effective indoor way finding solutions

You tell a CXO they can have indoor wayfinding to improve patient experience scores and there is no cap ex because there is no hardware - there is literally zero reason to turn it down.

They have nothing to lose and everything to gain

franga2000•7h ago
Well yes, that's kind of my point. I understood "just use a peertube instance and the web geolocation api" to mean using GPS for location. Outdoor navigation is more or less solved, but indoor doesn't benefit from GPS at all, so you need some other positioning system. I've worked on a few deployments of different systems and yeah, expensive, annoying, and usually still unreliable.

Like I said in the other comment, if you can make it good without any indoor positioning, that's a killer feature. I just...have my doubts...

24hrmvp•7h ago
The are limitations for sure without positioning. From first hand experience, humans just prefer the 3D experience because, and this is kind of sad but kind of expected, people just want to keep their heads buried into their phones instead of looking at the world around them. So if you give them a video route that can get them from the entrance of the building to where they need to be (and serve them ads $$ along the way) - the UX wins - sans positioning

But in the event of an emergency evacuation when you have no idea where that device is in the building - you are up a creek

usefulposter•19h ago
>Users burn $FIND tokens to mint "credits" that unlock videos.

>I care deeply about making the world accessible for all.

Let me get this straight. I'm in a hospital, stressed looking for my X-ray room, I scan a QR code, it opens a link to a video hosted on Cloudflare according to your tech stack, but the video is locked by Krowdovi, so I then need a Solana wallet funded with SOL, and need to have swapped that SOL for FIND, and then I spend FIND on credits to unlock the video that I can then follow to get to the X-ray room?

patcon•19h ago
I assume it's the vendors who are the target to buy these. He said they charge a lot to map a venue, and so I'm guessing he wanted to create a market for the videos that they will buy. If I'm understanding correctly, it's about building up a reservoir of content, then approaching the vendors to be like "all this content is here at this rate if you want to pay this feed to unlock it.

Maybe I'm wrong though, I've spent more time typing to you than I spent reading closely :)

24hrmvp•18h ago
Kind of - 2 core problems (maybe 3 really)

1. For a long time developers focused on AR tech to try and create indoor nav experiences. Reality check: People don't care how they get there. Just that they get there. 1st person POV gets them there, without ever having to download an app or exchange any of their own data. For a more native type experience, I do intend to have this built into iOS app clips, again with the intention that an end user should never have to download a full app just to be able to navigate a space

2. Videographers are getting displaced by genAI at a rapid rate. This sucks. Krowdovi is an offramp in the future of work. A properly funded liquidity pool and a willingness to pivot talents into a different style of work, the indoor navigation market is poised for massive growth ($28B TAM). This platform is being designed to be very much like Hivemapper, but for indoor spaces. This provides creators like videographers an opportunity to start their own business and through DePIN, have a real ownership stake in the company

3. This is the maybe 3rd core problem - vendor lock ins suck. Especially in healthcare. The burn mint model is designed to be a more future tech approach to value based contracting. Instead of having to pay software vendors upfront for warez that end up not working and nobody uses, in this model, the health systems are only burning (paying) when/if the videos are being used. Proper incentive structures - I am incentivized to build something that isn't just the next vaporware, creators are incentivized to record quality routes with proper overlays, and the health systems themselves can approach this from the perspective of - what do we have to lose?

Long tail - there is no good data source for video of indoor spaces either. If compute costs continue to trend down - I really am thinking about machine learning on the video - adding some contextual data, it's possible to create an experiential mode for those who are blind. Instead of just narrating to them how to get where they are going - how about telling them literally all about the world around them... Now that's what I'm talking about!

24hrmvp•19h ago
No no no - 2 definitions of user here. The idea is that the venue only has to cover the burn of $FIND for every instance of the video being served.

So, let's reframe this.

You go to hospital. Theoretically by this point, the tech is integrated with Epic MyCharts - once you enter the geofence of the hospital, you are sent an SMS message that guides you straight from the parking lot right to radiology.

The video is served, you use the route to arrive at radiology.

The hospital is covering the burn. The creator is getting paid royalty on the remint

As the patient, you never even know that any of that is happening

I probably need to reword that.

In my brain it makes sense but I get that is worded confusing

Accessibility is definitely critical to me tho

Core functionality and the most important imo is voice narration for vision impaired. Translated into native device language. Hasn't been implemented yet, but if done correctly by the creator, a mobility toggle becomes available that can serve best route for those who might be wheelchair bound

Make more sense?

endofreach•16h ago
as insane as it sounds, it‘s not much worse than the current state of tech tbh.
cadamsdotcom•14h ago
Your competition is a floor plan printed and stuck to the wall.

(Paper maps are a legal requirement - fire escape plans are handy to navigate in a pinch)

24hrmvp•14h ago
My competition is not a paper map because people who are blind cannot see a paper map.

Are those fire escape plans printed in multiple languages for the amount of people who show up to a hospital and do not speak english?

Why is it that the healthcare industry is losing so much money in staff hours to manual wayfinding assistance and it's a known problem?

Did you know that indoor navigation assistance qualifies now as patient experience improvements - meaning hospitals actually MAKE money by improving wayfinding within the facility?

Rather naive take you have...

cadamsdotcom•13h ago
People who are blind ask for directions at the front desk.

Paper maps are made of lines and boxes, and rooms & wards are generally numbers and letters.

Further, any hospital in a multi-lingual area will ensure they provide service in the languages they expect people to speak. For everyone else there’s family members to do the visit with.

Is the healthcare industry really losing money?

Is it losing enough money to sit through an explanation of Solana?

Which part of the industry do you refer to?

How many stakeholders have you spoken to?

Do you come from an enterprise sales background?

Have you sold things into large enterprises before?

Have you sold things into large enterprises operating under strict regulations where your solution must coexist with decades of legacy iteration?

Sorry to be an ass, but, I only want to spare you the 2-3 years you’re about to sink chasing this.

24hrmvp•13h ago
I worked in healthcare directly with CXOs for 15 years - the entire industry is moving towards tokenizing everything. In 15 years, I never saw a paper map handed out, not once.

My entire job was to work with the GPOs to align vendor contracts on device sales

The indoor navigation industry sits presently at approximately $22B TAM, per Grand View research it is to reach $174B TAM by 2030.

Wayfinding solutions increases patient experience, this directly increases HCPCS scores. That translates directly into the federal MIPS program (Merit Incentive Payment System) which directly correlates to increased reimbursements from Medicare.

If you increase patient experience scores, it makes the bondholders a bit more likely to offer favorable credit terms.

Sorry to be an ass - but you have no freaking clue what you are talking about and perhaps you should stay in your lane

Edit: And yes, the healthcare industry has been losing money hand over fist for decades - this is not true of device and pharm manufacturers, but for your average community hospital, they are barely scraping by

cadamsdotcom•13h ago
Those are some impressive credentials. I wish you well.
24hrmvp•14h ago
Do you have any idea how many hospitals went bankrupt last year? How many frontline healthcare workers lost their jobs?

Isn't HN supposed to be a place for serious discussion about tech?

Imagine if Google said - Well, people have Rand McNally Atlas' so I guess the market is spoken for... Lol

24hrmvp•13h ago
Credentials be damned - that's not the point. When you say "blind people will just get directions from the front desk"

You need to really understand - that isn't what they want. Same for anybody else that has what is commonly referred to as a disability (which I and many others call superpowers)

Do you know what these people want (and deserve)? Independence.

With independence, comes dignity. The feeling of having to rely on others just to exist is a tough pill to swallow for many - it's why I made this tech MIT open source.

Would be happy if people forked it and went off and helped people gain a bit more independence and dignity in their life.

The average hospital by my estimates can increase their bottomline by a half million in MIPS incentives alone - solutions like this pay for themselves - especially when there is literally no upfront investment for the health system.

But, more important than the money, is giving their patients with superpowers their independence. Period.

That's why I built this (and made it free to license)